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$396+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 13, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$614
(Iberia)

One-way from

$396
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$661
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
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From Seattle/Tacoma Intl to London City
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One-way flight from Seattle/Tacoma Intl to London City
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Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Virgin Atlantic deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:05 pmSEA - LCY
1 stop20h 30mVirgin Atlantic
Mon 12/85:05 pmLCY - SEA
1 stop26h 45mVirgin Atlantic
Deal found 11/13$632
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:25 amSEA - LCY
2 stops42h 45mDelta
Wed 12/109:20 amLCY - SEA
1 stop34h 30mDelta
Deal found 11/13$636
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:05 pmSEA - LCY
1 stop17h 30mDelta
Wed 12/107:45 amLCY - SEA
2 stops39h 14mDelta
Deal found 11/13$642
This Virgin Atlantic deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:05 pmSEA - LCY
1 stop17h 30mVirgin Atlantic
Sat 2/288:40 amLCY - SEA
2 stops21h 45mVirgin Atlantic
Deal found 11/12$645
This SWISS deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1110:53 amSEA - LCY
2 stops18h 02mSWISS
Tue 11/189:15 amLCY - SEA
2 stops22h 29mSWISS
Deal found 11/10$650
This SWISS deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/33:25 pmSEA - LCY
2 stops17h 40mSWISS
Thu 12/119:15 amLCY - SEA
2 stops21h 13mSWISS
Deal found 11/11$651
This United Airlines deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:10 amSEA - LCY
2 stops20h 45mMultiple Airlines
Tue 12/99:50 amLCY - SEA
2 stops23h 00mMultiple Airlines
Deal found 11/13$662
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:05 pmSEA - LCY
1 stop33h 05mDelta
Wed 12/109:20 amLCY - SEA
1 stop34h 30mDelta
Deal found 11/13$682
This Delta deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/303:00 pmSEA - LCY
1 stop32h 15mDelta
Tue 12/910:00 amLCY - SEA
1 stop33h 50mDelta
Deal found 11/13$685
This KAYAK deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:00 amSEA - LCY
2 stops26h 40mLufthansa
Mon 12/156:15 pmLCY - SEA
1 stop25h 55mLufthansa
Deal found 11/11$686
This Gurufare deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:00 pmSEA - LCY
1 stop18h 40mLufthansa
Wed 11/196:10 pmLCY - SEA
1 stop26h 00mLufthansa
Deal found 11/10$694

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-5:20 pm

1 stop18h 15m

London City

Wed 12/10

8:40 am-8:35 pm

2 stops19h 55m

$642

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 2/2

6:05 am-8:10 am

2 stops18h 05m

London City

Mon 2/9

5:05 pm-11:40 am

1 stop26h 35m

$645

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 12/9

7:20 am-7:15 am

2 stops15h 55m

London City

Sat 2/28

8:40 am-10:25 pm

2 stops21h 45m

$650

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 2/18

3:05 pm-5:20 pm

1 stop18h 15m

London City

Thu 2/26

8:40 am-9:55 pm

2 stops21h 15m

$650

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 1/25

3:10 pm-5:20 pm

1 stop18h 10m

London City

Thu 2/5

7:45 am-8:46 pm

2 stops21h 01m

$650

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 1/8

7:10 am-8:50 am

2 stops17h 40m

London City

Fri 1/16

8:05 pm-11:50 am

1 stop23h 45m

$651

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 2/2

3:05 pm-4:35 pm

1 stop17h 30m

London City

Sun 2/8

8:05 pm-8:37 pm

2 stops32h 32m

$653

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/31

5:35 pm-4:40 pm

1 stop15h 05m

London City

Tue 4/14

5:50 pm-11:35 am

1 stop25h 45m

$658

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Fri 1/23

7:00 am-11:40 am

3 stops20h 40m

London City

Mon 1/26

5:50 pm-6:14 pm

2 stops32h 24m

$659

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 4/6

5:35 pm-5:20 pm

1 stop15h 45m

London City

Mon 4/13

5:50 pm-11:35 am

1 stop25h 45m

$659

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 20 results
1
2
  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to London City Airport

What is the cheapest time of day to fly from SEA to LCY?

Find hourly flight availability from Seattle to London City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

When flying from Seattle to London City Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 30% versus a flight in the morning.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated November 13, 2025.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,575 reviews

Overall

7.4

Crew

8.0

Comfort

7.3

Entertainment

6.7

Boarding

7.6

Food

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,575 reviews
Scandinavian Airlines
7.4
Good
1,575 reviews

Overall

7.4

Crew

8.0

Comfort

7.3

Entertainment

6.7

Boarding

7.6

Food

6.7

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 18h 15m. Virgin Atlantic provides one of the quickest options available for as low as $642. Seattle and London City Airport are separated by a distance of 4794 mi.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

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